Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Ferromagnetism01:31

Ferromagnetism

2.8K
Materials like iron, nickel, and cobalt consist of magnetic domains, within which the magnetic dipoles are arranged parallel to each other. The magnetic dipoles are rigidly aligned in the same direction within a domain by quantum mechanical coupling among the atoms. This coupling is so strong that even thermal agitation at room temperature cannot break it. The result is that each domain has a net dipole moment. However, some materials have weaker coupling, and are ferromagnetic at lower...
2.8K
Faraday Disk Dynamo01:23

Faraday Disk Dynamo

3.1K
A Faraday disk dynamo is a DC generator, producing an emf that is constant in time. It consists of a conducting disk that rotates with a constant angular velocity in the magnetic field, perpendicular to the disk's plane. The rotation of the disk causes a change in magnetic flux, which induces an emf, causing opposite charges to develop on the rim and in the center of the disk. The polarity of the induced emf can be determined by the direction of the magnetic field and the direction of the...
3.1K
Magnetic Force01:18

Magnetic Force

1.6K
In addition to the electric forces between electric charges, moving electric charges exert magnetic forces on each other. A magnetic field is created by a moving charge or a group of moving charges known as the electric current. A magnetic force is experienced by a second current or moving charge in response to this magnetic field. Fundamentally, interactions between moving electrons in the atoms of two bodies produce magnetic forces between them.
The magnetic force acting on a moving charge...
1.6K
Torque On A Current Loop In A Magnetic Field01:13

Torque On A Current Loop In A Magnetic Field

5.4K
The most common application of magnetic force on current-carrying wires is in electric motors. These consist of loops of wire, which are placed between the magnets with a magnetic field. When current flows through the loops, the magnetic field applies torque, which causes the shaft to rotate, thus converting electrical energy to mechanical energy.
Consider a rectangular current-carrying loop containing N turns of wire, placed in a uniform magnetic field. The net force on a current-carrying loop...
5.4K
Potential Due to a Magnetized Object01:24

Potential Due to a Magnetized Object

683
Magnetic dipoles in magnetic materials are aligned when placed under an external magnetic field. For paramagnets and ferromagnets, dipole alignment occurs in the direction of the magnetic field. However, the dipoles align opposite to the field in the case of diamagnets. This state of magnetic polarization due to the external field is called magnetization. Magnetization is defined as the dipole moment per unit volume. It plays a similar role to polarization in electrostatics.
The vector...
683
Ferrocement01:30

Ferrocement

535
Ferro-cement is a distinctive construction material that represents an innovative variant of reinforced concrete, characterized by its unique composition and the method by which it is formed. Unlike standard reinforced concrete, which relies on larger steel bars for reinforcement, ferro-cement utilizes densely packed layers of mesh or fine rods, fully encased in cement mortar. This composition allows for the creation of structures that are significantly thinner and more flexible than their...
535

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Comment on "Bacterial Involvement in Oral Squamous Cell Carcinoma and Potentially Malignant Oral Disorders".

Oral diseases·2026
Same author

Letter to the Editor regarding "Long-term survival and success of resin-bonded fixed partial dentures with hybrid versus conventional retainers".

The Journal of prosthetic dentistry·2026
Same author

A Numerical Approach to Brace Treatment Prediction by Comprehensive Biomechanical Modeling of Adolescent Idiopathic Scoliosis.

International journal for numerical methods in biomedical engineering·2026
Same author

Numerical study of effective parameters on deformation and coalescence of ferrofluid droplets under uniform magnetic field.

Heliyon·2024
Same author

Numerical simulation and mathematical modeling of biomechanical stress distribution in poroelastic tumor tissue via magnetic field and bio-ferro-fluid.

Heliyon·2024
Same author

Discriminating orientation information with phase consistency in alpha and low-gamma frequency bands: an EEG study.

Scientific reports·2024
Same journal

Dynamic-Based Path Planning and Locomotion of Tensegrity Robots Considering Environmental Interaction.

Soft robotics·2026
Same journal

A Soft Magnetic Jamming Method Enabling Variable Stiffness and Active Steering for Robotic Catheter.

Soft robotics·2026
Same journal

Research on the Design of Variable Stiffness Adhesive Feet and Cooperative Crawling Mechanism for Soft Bionic Gecko-Inspired Wall-Climbing Robots.

Soft robotics·2026
Same journal

Bioinspired Swallowing Soft Gripper with Toroidal Optical Waveguides for Multimodal Interactive Perception.

Soft robotics·2026
Same journal

Plant-Inspired Elastic-Hydraulic Tactile Sensing Enables Quantitative Stiffness Estimation in Soft Robots.

Soft robotics·2026
Same journal

Ultrastable Soft Capacitive Tactile Sensor with Impedance-Modulated Signal.

Soft robotics·2026
See all related articles

Related Experiment Video

Updated: Dec 3, 2025

Four-Dimensional Printing of Stimuli-Responsive Hydrogel-Based Soft Robots
05:43

Four-Dimensional Printing of Stimuli-Responsive Hydrogel-Based Soft Robots

Published on: January 13, 2023

3.9K

A Shapeshifting Ferrofluidic Robot.

Reza Ahmed1, Mahdi Ilami1, Joseph Bant1

  • 1School for Engineering of Matter Transport and Energy (SEMTE), Arizona State University, Tempe, Arizona, USA.

Soft Robotics
|October 26, 2020
PubMed
Summary
This summary is machine-generated.

Researchers developed a miniature shapeshifting robot using ferrofluid. This magnetically controlled robot can move, divide, and manipulate objects with high precision for complex tasks.

Keywords:
controlselectromagnetic actuationferrofluidfunctional materialsrobotics

More Related Videos

A Robotic Platform to Study the Foreflipper of the California Sea Lion
08:53

A Robotic Platform to Study the Foreflipper of the California Sea Lion

Published on: January 10, 2017

8.2K
Folding and Characterization of a Bio-responsive Robot from DNA Origami
07:59

Folding and Characterization of a Bio-responsive Robot from DNA Origami

Published on: December 3, 2015

14.9K

Related Experiment Videos

Last Updated: Dec 3, 2025

Four-Dimensional Printing of Stimuli-Responsive Hydrogel-Based Soft Robots
05:43

Four-Dimensional Printing of Stimuli-Responsive Hydrogel-Based Soft Robots

Published on: January 13, 2023

3.9K
A Robotic Platform to Study the Foreflipper of the California Sea Lion
08:53

A Robotic Platform to Study the Foreflipper of the California Sea Lion

Published on: January 10, 2017

8.2K
Folding and Characterization of a Bio-responsive Robot from DNA Origami
07:59

Folding and Characterization of a Bio-responsive Robot from DNA Origami

Published on: December 3, 2015

14.9K

Area of Science:

  • Robotics
  • Materials Science
  • Microfluidics

Background:

  • Miniature robots are crucial for intricate tasks in medicine and microassembly.
  • Controlling microscale devices with high dexterity remains a significant challenge.
  • Ferrofluids offer unique properties for developing reconfigurable micro-robots.

Purpose of the Study:

  • To engineer a miniature shapeshifting robot with diverse functionalities.
  • To demonstrate precise control over the robot's position and shape.
  • To explore applications in remote medical and microassembly tasks.

Main Methods:

  • Utilized a magnetically responsive ferrofluid droplet as the robot's core.
  • Developed a custom electromagnetic field generation system for control.
  • Validated functionalities including movement, subdivision, and particle engulfment.

Main Results:

  • The ferrofluidic robot demonstrated controlled movement, subdivision, and regeneration.
  • Achieved precise control over position and shape with submillimeter and subdegree error.
  • Successfully performed particle engulfment and object manipulation tasks.

Conclusions:

  • A miniature shapeshifting ferrofluidic robot was successfully created and controlled.
  • The robot exhibits capabilities essential for advanced micro-scale operations.
  • This technology holds promise for remote medical procedures and microassembly.